> What's weirder (and I forgot to mention) is that if I just build the project
> normally outside of my regression testing script (ie. "make -j5"), I don't
> get the jobserver warning.

The reason for this error message from make is given at [1].

I've seen something like this before when my build used "Unix
Makefiles" as the generator and the build invoked an external build
system as a `add_custom_command()` that also used makefiles to do its
build.

The problem was that make (in the outer most build system, i.e. the
CMake generated) one was setting the `MAKEFLAGS` environment variable
to do communicate various bits of information to handle recursive
makefiles (see [2]). This works fine until the CMake generated
makefiles invoked the external build system with `MAKEFLAGS` being
set.

My solution was to strip `MAKEFLAGS` out of the environment when
invoking the `make` command externally.

This isn't exactly your problem but it may help you figure out what is
wrong. My guess is that the sub-make isn't being invoked correctly.

[1] https://www.gnu.org/software/make/manual/html_node/Error-Messages.html
[2] 
https://www.gnu.org/software/make/manual/html_node/Options_002fRecursion.html
-- 

Powered by www.kitware.com

Please keep messages on-topic and check the CMake FAQ at: 
http://www.cmake.org/Wiki/CMake_FAQ

Kitware offers various services to support the CMake community. For more 
information on each offering, please visit:

CMake Support: http://cmake.org/cmake/help/support.html
CMake Consulting: http://cmake.org/cmake/help/consulting.html
CMake Training Courses: http://cmake.org/cmake/help/training.html

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html

Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/cmake

Reply via email to